ddraw: Return a nullpointer as lpSurface in Lock() if the rect is invalid.
[wine] / dlls / vnbt.vxd /
drwxr-xr-x   ..
-rw-r--r-- 257 Makefile.in
-rw-r--r-- 5802 vnbt.c
-rw-r--r-- 79 vnbt.vxd.spec